Tacky ink pen

Abstract

A tacky ink includes a solvent, a coloring agent, and additives with a tackiness agent. The tackiness agent is to impart tackiness to the ink composition. The tackiness agent is polyethylene oxide with the following structural formula: HO—(CH 2 CH 2 O) n —CH 2 CH 2 OH where n is ranged from 400 to 1,000,000.

What is claimed is:  
     
         1 . A tacky ink comprising: 
 a solvent;    a coloring agent; and    additives comprising a tackiness agent for imparting tackiness to the ink composition.    
     
     
         2 . The tacky ink of  claim 1  wherein the tackiness agent is polyethylene oxide.  
     
     
         3 . The tacky ink of  claim 2  wherein the polyethylene oxide is expressed by the following structural formula: HO—(CH 2 CH 2 O) n —CH 2 CH 2 OH where n is ranged from 400 to 1,000,000.  
     
     
         4 . The tacky ink of  claim 2  wherein the polyethylene oxide is expressed by the following structural formula: HO—(CH 2 CH 2 O) n —CH 2 CH 2 OH where n is ranged from 100,000 to 300,000.  
     
     
         5 . The tacky ink of  claim 1  wherein the amount of the tackiness agent is 0.01-20 weight percents of the ink composition.  
     
     
         6 . The tacky ink of  claim 1  wherein the amount of the tackiness agent is 0.1-10 weight percents of the ink composition.  
     
     
         7 . The tacky ink of  claim 1  wherein the coloring agent is formed with one or more pigments soluble in the solvent such as oil pigment, water pigment, and fluorescent pigment, or with one or more kinds of particles distributed in the ink composition such as pigment or dye, metallic powder, mica powder, fluorescent dye, and phosphorescent dye.  
     
     
         8 . The tacky ink of  claim 1  wherein the additives comprise aromatic materials.  
     
     
         9 . A pen using a tacky ink, the pen comprising: 
 an ink storage unit with a tube for storing the tacky ink therein and a tip partially inserted into an end portion of the tube, the tacky ink having a composition of a solvent, a coloring agent and additives, the additives comprising a tackiness agent for imparting tackiness to the ink composition;    a case receiving the ink storage unit; and    a cap inserted into an end portion of the case while receiving the tip of the ink storage unit.    
     
     
         10 . The tacky ink of  claim 9  wherein the tackiness agent is polyethylene oxide.  
     
     
         11 . The tacky ink of  claim 10  wherein the polyethylene oxide is expressed by the following structural formula: HO—(CH 2 CH 2 O) n —CH 2 CH 2 OH where n is ranged from 400 to 1,000,000.  
     
     
         12 . The tacky ink of  claim 9  wherein the amount of the tackiness agent is 0.01-20 weight percents of the ink composition.  
     
     
         13 . The tacky ink of  claim 9  wherein the coloring agent is formed with one or more pigments soluble in the solvent such as oil pigment, water pigment, and fluorescent pigment, or with one or more kinds of particles distributed in the ink composition such as pigment or dye, metallic powder, mica powder, fluorescent dye, and phosphorescent dye.